Chiari malformation type I
MONDO:0007316Arnold-Chiari malformation type I is a central nervous system malformation characterized by caudal displacement of the cerebellar tonsils exceeding 5mm below the foramen magnum with or without syringomyelia. Symptoms vary in onset and severity and include suboccipital headache, neck pain, vertigo, tinnitus, ocular symptoms (diplopia, blurred vision, photofobia, nystagmus), lower cranial nerve signs, cerebellar ataxia, and spasticity. Some affected individuals can be asymptomatic.
Also known as: Arnold-Chiari malformation type 1, Arnold-Chiari malformation type I, Chiari malformation type 1, Chiari malformation type I, Chiari malformation type 1 with syringomyelia, Cm1, Cm1 with syringomyelia
11 clinical trials for this condition and its sub-types.
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Massive data collection launched for brain surgery patients
Knowledge-focused Recruiting nowThis study is gathering medical information and samples from up to 5,000 people with neurosurgical conditions like brain tumors, epilepsy, and Parkinson's disease. Participants receive standard care while their data is collected for future research. No new treatments are being te…
Sponsor: National Institute of Neurological Disorders and Stroke (NINDS) • Aim: Knowledge-focused
Last updated Jun 27, 2026 14:00 UTC
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Massive study aims to predict brain surgery success
Knowledge-focused Recruiting nowThis study is gathering information from 4500 people who have or will have brain surgery for conditions like aneurysms, tumors, epilepsy, and Parkinson's disease. The goal is to find patterns that help doctors predict how well someone will recover. By standardizing how outcomes a…
Sponsor: Fondazione I.R.C.C.S. Istituto Neurologico Carlo Besta • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:02 UTC
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Scientists map DNA 'Signatures' in rare fetal diseases
Knowledge-focused Recruiting nowThis study looks at DNA methylation patterns (chemical tags on DNA) in fetuses with rare genetic diseases. Researchers will analyze DNA from amniotic fluid and tissue samples to create reference signatures. The goal is to improve diagnosis of these conditions before birth. The st…
Sponsor: Assistance Publique - Hôpitaux de Paris • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:01 UTC
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Gene tests for sick newborns: a lifesaver in the NICU?
Knowledge-focused Recruiting nowThis study is testing whether using rapid genetic sequencing can help doctors diagnose and treat birth defects in newborns in intensive care. Researchers will enroll 2,000 babies and compare death rates, disability rates, and genetic findings. The goal is to see if personalized t…
Sponsor: Children's Hospital of Fudan University • Aim: Knowledge-focused
Last updated Jun 26, 2026 13:36 UTC